Danfoss VLT MICRO Manual page 44

12. 18: Counter T rigger – Parameter value 18 programs a Multi-function Input
Terminal: M1 (Pr.38), M2 (Pr.39), M3 (Pr.40), M4 (Pr.41) or M5 (Pr.42) to increment the
AC drive's internal counter. When the input transitions from low to high the counter is
incremented by 1.
Application Note:
The Counter Trigger input can be connected to an external sensor to count a process
step or unit of material used in a process. Refer to the diagram below.
Indication Value
c 00
(P64)
Counter trigger signal
Multi-function input terminal
Signal output with (P97 = 03)
Pr.-97 counter (P45/P46)
value is attained.
Signal output with (P96 = 05)
Pr.-96 counter (P45/P46)
value is attained.
13. 19: Counter Reset – Parameter value 19 programs a Multi-function Input
Terminal: M1 (Pr.38), M2 (Pr.39), M3 (Pr.40), M4 (Pr.41) or M5 (Pr.42) to reset the
counter.
19 Reset the counter
Application Note:
The input terminal resets the counter to "00" which can be displayed on the Digital
Keypad/Display.
Trigger
Mx Counter value add. one unit by
18 Counter trigger
signal input.
GND
c 01 c 03
c 02
Reset Counter
Mx "Closed": Operation available.
value.
GND
44
signal "On" to "Off".
VLT MICRO
c 04 c 05 c 01
Indicated by c00 on display.
VLT MICRO
® ® ® ® ®
VLT MICRO
2mS
c 02
2mS
The trigger timing can not be
less than 2mSec. (<250Hz)